Certain points from Life! newspaper (from Singapore):
1) They are back together.
2) Dennis realised that the so-called "high maintenance" Erika is actually very understanding over the elimination in the first leg. Plus, she is a tough gal.
3) Erika realised that Dennis is such a sweetheart and is so nice to people and considers her lucky to be with her.
4) Erika's friend been to Singapore and likes it, so Erika said to Dennis that if he were to propose, it has to be in Singapore. [IMO, just courtesy talk haha ]

And...well, Dennis' surname is Frentsos, thus quite possibly, he is a Greek. Well, its just a further proof and not a confirmation, so take it with a pinch of salt.